/* Header styles for BrandMotionStudiio */

.bm-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(to bottom, rgba(5, 6, 9, 0.96), rgba(5, 6, 9, 0.86));
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.bm-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-16);
  gap: var(--space-16);
}

/* Brand */
.bm-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  color: var(--color-text);
      z-index: 99;
}

.bm-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 30% 70% 65% 35% / 40% 30% 70% 60%;
  background: conic-gradient(from 180deg, var(--color-primary), var(--color-magenta), var(--color-orange), var(--color-primary));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12), var(--shadow-sm);
}

.bm-header__brand-text {
  display: flex;
  flex-direction: column;
}

.bm-header__brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--font-size-lg);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bm-header__brand-accent {
  color: var(--color-primary);
}

.bm-header__brand-tagline {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
}

/* Navigation */
.bm-header__nav {
  display: flex;
  align-items: center;
}

.bm-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-24);
}

.bm-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.2rem;
}

.bm-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-magenta));
  transition: width var(--transition-base);
}

.bm-header__nav-link:hover,
.bm-header__nav-link:focus-visible {
  color: var(--color-text);
}

.bm-header__nav-link:hover::after,
.bm-header__nav-link:focus-visible::after {
  width: 70%;
}

.bm-header__nav-item--cta .bm-header__nav-link--cta {
  padding-inline: var(--space-20);
}

/* Mobile toggle */
.bm-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-8);
  color: var(--color-text);
}

.bm-header__toggle-text {
  font-size: var(--font-size-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.bm-header__toggle-box {
  width: 24px;
  height: 18px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.bm-header__toggle-line {
  width: 100%;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-magenta));
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Backdrop for mobile navigation */
.bm-header__backdrop {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top, rgba(49, 107, 255, 0.35), transparent 55%),
              radial-gradient(circle at bottom, rgba(224, 0, 135, 0.35), transparent 55%),
              rgba(5, 6, 9, 0.9);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  z-index: 30;
}

/* Open state modifiers (added via JS) */
.bm-header--nav-open .bm-header__backdrop {
  opacity: 1;
  visibility: visible;
}

.bm-header--nav-open .bm-header__toggle-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.bm-header--nav-open .bm-header__toggle-line:nth-child(2) {
  opacity: 0;
}

.bm-header--nav-open .bm-header__toggle-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Responsive */
@media (max-width: 920px) {
  .bm-header__toggle {
    display: inline-flex;
        z-index: 99;
  }

  .bm-header__nav {
    position: fixed;
    inset-block: 0;
    right: 0;
    width: min(320px, 80vw);
    background: var(--color-surface);
    border-left: 1px solid var(--color-border-subtle);
    padding: var(--space-32) var(--space-24);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 40;
  }

  .bm-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-20);
    margin-top: var(--space-32);
  }

  .bm-header__nav-link {
    font-size: var(--font-size-md);
  }

  .bm-header--nav-open .bm-header__nav {
    transform: translateX(0);
            top: 68px;
        height: 300px;
  }
}

@media (max-width: 540px) {
  .bm-header__brand-tagline {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bm-header,
  .bm-header__nav,
  .bm-header__backdrop,
  .bm-header__toggle-line {
    transition-duration: 0.001ms !important;
  }
}